Second photo is 4 fingers and a thumb
That is what a hand looks like at that angle. If you really believe there's anything weird about it then the problem is that you don't normally pay this much attention to hands.
I've not studied much AI but I've studied human antomy, art, and old fashioned technical drawing (all in pencil, with real paper and rulers etc.)
This doesn't need AI to explain, it looks the way you'd expect it to look.
Israeli propaganda contains more than enough real lies, don't discredit critics by making a fuss about nothing.
The circled hand at that angle has five.
The other circled hand has five. The part labelled as a sixth is mostly covered by the mark, but in images where it's visible it is clearly part of his hand.
I could replicate his angle, but not the stage lighting. He has a bright light in front of him. This means unusual parts of his hand get brightly lit. In most lighting the lower edge of someone's hand is in a shaddow.